Huawei HarmonyOS Buffer Overflow Vulnerability in the HDC Module

A buffer overflow vulnerability has been identified in the HDC module of Huawei HarmonyOS devices. This vulnerability, present in HarmonyOS 6.0.0, can be exploited to cause a buffer overflow, potentially leading to arbitrary code execution or other unintended behavior. The vulnerability may also affect the confidentiality and availability of the device.

Impact

Exploitation of this vulnerability can lead to a buffer overflow, which may be used to execute arbitrary code or cause a crash, disrupting the normal operation of the device.

Remediation

Users can apply the February 2026 security update, which includes a patch for this vulnerability. Instructions for downloading this update can be found on the Huawei support website.